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Random freezes & quick temeperature raise on nVIDIA GTX 560 Ti

quick question about NVIDIA optimusI have a quick question to the NVIDIA optimus gang!
I know (now!) that the workaround is to underclock. My problem is that these settings aren't being respected, the GPU reverts to 672 and NVIDIA (or sometimes Intel) service stops and restarts... system is unstable (and can crash) until...

Graphic Cards

Resolution problem with my nvidia gt630 card - cant raise over 1024Hello,
just bougt a new gigabyte geforce gt630.
when connecting it i cant raise resolution more than 1024 x 768 which is crazy !
i thought its the card so they replaced it with a new one + i have all updated drivers installed.
the weird thing is when i connect my onboard vga i can get to...

Graphic Cards

Quick Halts/Freezes than back to normalTwo PCs here, one with Windows Business other with Ultimate have the same problem.
They don't crash or completely stop, nor go slow along the day. They just give me several small halts during the entire operation.
Everything is up to date, during stress test no problems are noticeable but (one PC...

Quick question on ATI and NVIDIA together ?I have a new MSI 890FXA-GD70 mobo and I've been using a BFG GTX260 Maxcore which I will be replacing with a newly ordered MSI R5770 Hawk series GPU.
Question:
1) Can I still use the GTX260 and benefit from it's PhysX ability ?
2) Has anyone any Crossfire knowledge on this R5770 Hawk card ?...

Graphic Cards

Nvidia 9800 GT freezesHello everyone. New poster here.
I've seen other threads about the problems people are having with the Nvidia 9800 GT card. Well, you can add me to that list. At least I can remove it and still having a working computer.
Running off of onboard graphics works perfectly fine for me, but when I...